Here's a friendly walkthrough of how challenges on Praxide play out. Over in the Code tab above, you'll find a starter function that reads like this: def hello(): Your only job is to type return "hello praxide.com" on the second line, then hit the Check button. Nail it, and the button glows red and switches to SUBMIT FINAL. …

Write a function that accepts two numbers as arguments and hands back their sum. Examples addition(3, 2) ➞ 5 addition(-3, -6) ➞ -9 addition(7, 3) ➞ 10 Notes Remember to return your answer. Whenever a challenge trips you up, grab a hint from the Resources tab. Still stuck? Reveal the answer in the Solutions tab.

Write a function that accepts a single number as an argument, bumps that number up by +1, and returns the result. Examples addition(0) ➞ 1 addition(9) ➞ 10 addition(-3) ➞ -2 Notes Remember to return your answer. Whenever a challenge trips you up, grab a hint from the Resources tab. Really stuck? Unlock the solutions in the So …

Build a function that receives an integer minutes and turns it into the matching number of seconds. Examples convert(5) ➞ 300 convert(3) ➞ 180 convert(2) ➞ 120 Notes Remember to return your final value. Feeling stuck on this one? Grab a hint from the Resources tab. Totally stuck? Reveal the answer in the Solutions tab.

Build a function that receives the base and height of a triangle and hands back its area. Examples tri_area(3, 2) ➞ 3 tri_area(7, 4) ➞ 14 tri_area(10, 10) ➞ 50 Notes The area of a triangle is: (base * height) / 2 Remember to return your final value. Feeling stuck on this one? Grab a hint from the Resources tab. If you're really …

Repair the code in the code tab so this challenge passes (only syntax errors here). Peek at the examples below to get a feel for what the function should do. Examples cube(3) ➞ 27 cube(5) ➞ 125 cube(10) ➞ 1000 Notes READ EACH LINE SLOWLY, LETTER BY LETTER! Don't overthink this one; it really isn't meant to be tricky.

Build a function that turns a number of hours into seconds. Examples howmanyseconds(2) ➞ 7200 howmanyseconds(10) ➞ 36000 howmanyseconds(24) ➞ 86400 Notes 60 seconds in a minute, 60 minutes in an hour Remember to return your answer.

Build a function that works out the maximum range of a triangle's third edge, given that every side length is an integer. Examples next_edge(8, 10) ➞ 17 next_edge(5, 7) ➞ 11 next_edge(9, 2) ➞ 10 Notes (side1 + side2) - 1 = maximum range of third edge. The side lengths of the triangle are positive integers. Don't forget to retu …

Python offers one handy operator that hands you the remainder left over from a division. Your function gets two numbers as parameters. Dividing the first parameter by the second leaves a remainder, which might be zero. Send that value back. Examples remainder(1, 3) ➞ 1 remainder(3, 4) ➞ 3 remainder(5, 5) ➞ 0 remainde …

Write a function that accepts a string and gives it back to you as an integer. Examples string_int("6") ➞ 6 string_int("1000") ➞ 1000 string_int("12") ➞ 12 Notes Each value will be a whole number. Each value will be positive.

Write a function that accepts an age and gives back that age counted in days. Examples calc_age(65) ➞ 23725 calc_age(0) ➞ 0 calc_age(20) ➞ 7300 Notes Treat every year as 365 days for this challenge. Skip leap years and any days between the last birthday and today. Only positive integer inputs will be given.

Write a function that accepts length and width and works out the perimeter of a rectangle. Examples find_perimeter(6, 7) ➞ 26 find_perimeter(20, 10) ➞ 60 find_perimeter(2, 9) ➞ 22 Notes Remember to return your result. If you get stuck, look for hints in the Resources tab. If you're still stuck, browse answers in the Solutions tab.

Write a function that accepts voltage and current and returns the resulting power. Examples circuit_power(230, 10) ➞ 2300 circuit_power(110, 3) ➞ 330 circuit_power(480, 20) ➞ 9600 Notes You'll need a basic understanding of electrical circuits (check the Resources for details).

Given a regular polygon with n sides, return the combined total of its interior angles (measured in degrees). Examples sum_polygon(3) ➞ 180 sum_polygon(4) ➞ 360 sum_polygon(6) ➞ 720 Notes n will always be greater than 2. The formula (n - 2) x 180 yields the sum of all the angle measures in an n-sided polygon.

Write a function that accepts a base number and an exponent number and returns the result of the calculation. Examples calculate_exponent(5, 5) ➞ 3125 calculate_exponent(10, 10) ➞ 10000000000 calculate_exponent(3, 3) ➞ 27 Notes Every test input will be a positive integer. Remember to return your result. If a challenge has you stuck …

Write a function that receives a boolean value flag and hands it back to you as a string. Examples booltostring(True) ➞ "True" booltostring(False) ➞ "False" Notes Remember to actually return your answer! Feeling stuck on this one? Grab a hint from the Resources tab. Totally stumped? Unlock the walkthrough in the Solutions tab.

Head into the code tab and repair the function so every test passes — you're only hunting for syntax errors here. Study the examples below to see exactly what the output should be. Examples squared(5) ➞ 25 squared(9) ➞ 81 squared(100) ➞ 10000 Notes SLOW DOWN AND READ EACH LINE, LETTER BY LETTER! Resist the urge to overcomplicate it; this one really isn't meant to …

Build a function that receives a list made up entirely of numbers and gives back its very first element. Examples getfirstvalue([1, 2, 3]) ➞ 1 getfirstvalue([80, 5, 100]) ➞ 80 getfirstvalue([-500, 0, 50]) ➞ -500 Notes Remember, the opening element of any list always sits at an index of 0.

Write a function that receives a team's tally of wins, draws and losses and works out how many points that football side has racked up so far. wins get 3 points draws get 1 point losses get 0 points Examples football_points(3, 4, 2) ➞ 13 football_points(5, 0, 2) ➞ 15 football_points(0, 0, 1) ➞ 0 Notes Inputs will be numbers …

For this challenge, a farmer wants your help counting up every single leg wandering around his property. He raises three kinds of animal: chickens = 2 legs cows = 4 legs pigs = 4 legs Having tallied his herd, the farmer hands you a subtotal for each species. Your job is to build a function that gives back the grand total nu …